On Thu, Jan 25, 2001 at 12:48:10PM +0000, Michael Nonweiler wrote:
> I am worried about remaining problems with unaligned accesses to word and
> short data.
Have you experimented yet with a conventional ARM Linux setup where you
recompile a kernel with the alignment trap handler turned on?
You shuld be able casts in C to manufacture unaligned pointers to trigger
the traps (IIRC it reports usage in /proc somewhere) and see if it correctly
fixes up the results of unaligned pointer reads and writes.
If the alignment trap handler works (in user space?) what classes of remaining
problems are you worried about?
> I would like to experiment with an ARM Linux setup that uses gcc modified
> for x86 structure packing. Brian mentions that some people are going to be
> experimenting with compilers configured this way.
>
> ** Has anyone produced such a system? **
I am unaware of such a system. However, I have not been keeping a lookout
for one.
Nicholas Clark
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